After trying to bake a lightmap, I noticed that my terrain now turns into shadow based on the distance from the camera. I can adjust this distance with the “Base Map Dist.” slider in the terrain inspector, but I prefer a lower value anyway for better performance. How can I get rid of this looming shadow effect?
This happens when you are using Pixel lighting setting on the terrain to mix realtime shadows and lightmapped terrain, and the exposure of your manipulated lightmap is different from your ingame lighting.
To fix this, adjust either the intensity of the ingame lighting, or make sure that your baked lightmap matches the original lightmap except for the new features you’ve added.
You will not see this if you only use the lightmapped mode on the terrain.